Erdogrul Ozlem, Covaci Adrian, Schepens Paul
Department of Food Science and Technology, Faculty of Agriculture, University of Kahramanmaras Sütçü Imam, Kahramanmaras, Turkey.
Environ Int. 2005 Jul;31(5):703-11. doi: 10.1016/j.envint.2005.01.002.
The levels of organohalogenated contaminants, such as organochlorine pesticides (OCPs), polychlorinated biphenyls (PCBs) and polybrominated diphenyl ethers (PBDEs) were measured in four fish species (Acanthobrama marmid (kalashpa), Cyprinus carpio (carp), Chondrostoma regium (nose-carp), and Silurus glanis (wels)) from the Sir Dam Lake, Kahramanmaras, Turkey. These species were selected for their characteristic feeding behaviour and their importance to local human fish consumption. DDTs were the predominant organohalogenated contaminants in all species, with the p,p'-DDE contributing to more than 90% to the total DDTs. Other OCPs, such as hexachlorocyclohexane (HCH) isomers, chlordanes and hexachlorobenzene (HCB) were found at much lower levels in all five species. The levels of PCBs and PBDEs (on wet weight basis) were lower than in similar species from European or American freshwater systems. PBDE data were measured for the first time in fish species from Turkish environment. Lipid-based concentrations of OCPs, PCBs and PBDEs were higher in wels than in the other species and this was related to its piscivorous feeding mode and to its higher lipid content. Contrarily, concentrations of pollutants in nose-carp were the lowest, in agreement with its more herbivorous diet. A preferential accumulation in muscle compared to liver was observed for all OCPs, PCBs, and PBDEs in wels and carp, while in nose-carp, a preferential accumulation in liver was observed only for PBDEs, p,p'-DDT and PCBs. Racemic amounts for alpha-HCH were measured in all investigated muscle and liver samples, except for carp muscle.
在土耳其加济安泰普省锡尔大坝湖的四种鱼类（阿氏棘鲷（卡拉什帕）、鲤鱼（鲤鱼）、雷氏软口鱼（鼻鲤）和六须鲶鱼（六须鲶））中测量了有机卤代污染物的含量，这些污染物包括有机氯农药（OCPs）、多氯联苯（PCBs）和多溴二苯醚（PBDEs）。选择这些鱼类是因为它们具有独特的摄食行为以及对当地人类食用鱼类的重要性。滴滴涕是所有物种中主要的有机卤代污染物，其中p,p'-滴滴伊占总滴滴涕含量的90%以上。在所有这五个物种中，其他有机氯农药，如六氯环己烷（HCH）异构体、氯丹和六氯苯（HCB）的含量要低得多。多氯联苯和多溴二苯醚（以湿重计）的含量低于欧洲或美国淡水系统中的同类物种。多溴二苯醚的数据是首次在土耳其环境中的鱼类物种中测得。基于脂质的有机氯农药、多氯联苯和多溴二苯醚浓度在六须鲶中高于其他物种，这与其食鱼的摄食方式及其较高的脂质含量有关。相反，鼻鲤中的污染物浓度最低，这与其更多的草食性饮食一致。在六须鲶和鲤鱼中，所有有机氯农药、多氯联苯和多溴二苯醚在肌肉中的积累量均高于肝脏，而在鼻鲤中，仅多溴二苯醚、p,p'-滴滴涕和多氯联苯在肝脏中的积累量较高。除鲤鱼肌肉外，在所有调查的肌肉和肝脏样本中均检测到了外消旋α-六氯环己烷。
